Why Poloniex closed widhrawal for Ardor?
It might be related to this.
https://cointelegraph.com/news/poloniex-displaying-incorrect-customer-balances-experiences-customer-service-woesOther redditors have been complaining of their account balances reflecting inaccurate or even negative amounts:
My margin account spazzed out a few minutes ago. My positions are in profit, and still showing as such individually, but I am suddenly seeing alerts of "Forced Liquidation" and a Margin of ~16%. Thankfully, none of my positions have actually been liquidated but I am now effectively unable to manage any of them due to the margin being so low. I have experienced similar issues with the margin system before and they've typically righted themselves, but this is extremely inconvenient. Hopefully they're just having a system issue and everything will be restored.
Poloniex has responded to this issue as well, indicating that they are working to restore correct balances and will be pausing all forced liquidations:
Poloniex Exchange
✔
@Poloniex
Some balances are off and will be corrected. Forced liquidations are turned off temporarily.
8:08 PM - Jan 17, 2018